Su Cheng explained, "The first possibility is that the gunpowder left through the back door, which Fang Ling violently blocked. Had the gunpowder already left before Fang Ling arrived? We can rule that out, because of the fire alarm. My guess is that he originally intended to leave through the back door, but after Fang Ling fired a warning shot, he realized the danger and retreated, triggering the fire alarm. However, that wasn't very effective, so he had to detonate the bomb to create chaos. He didn't expect the police backup to arrive so quickly, allowing them to verify everyone's identities. At that point, the only remaining option was to hide."
Su Cheng said, "A 27-story building has countless places to hide... However, we can use a method to verify whether he is hiding inside the bui
